1. Either nip on the neckline or neck cloth, elegant and simple2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. Talk time: up to 6 hours; standby time: up to 200 hours5. Broadcasting range of 10m (30&quo

1. Either nip on the neckline or neckcloth, elegant and simple2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. Talk time: up to 6 hours; standby time: up to 200 hours4. Broadcasting range of 10m (30 feet

Product Name: Wireless Headfree Earphone(BTF04)Model Number: BTF04Place of Origin: China1. Either nip on the neckline or neckcloth, elegant and simple2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. Talk

Product Name: Wireless Headsfree Earphone (BTF07)Model Number: BTF07Place of Origin: China1. Either nip on the neckline or neck cloth, elegant and simple2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. T

Features:1. Offering a comfortable fit and small but generous design2. Quicker connections, better audio quality, adaptive frequency hopping3. After pairing, automatically links to Bluetooth technolog

Product Name: Wirless Headfree (BTF01)Model Number: BTF01Place of Origin: ChinaFeatures:1. Offering a comfortable fit and small but generous design2. Quicker connections, better audio quality, adaptiv

1. Two way wearing with or without the ear hook2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. Talk time: up to 5 hours5. Standby time: up to 160 hours6. Broadcasting range of 10m (30")7. Weight: a

Product Name: Wirless Headfree (BTF06)Model Number: BTF06Place of Origin: China1. Two way wearing with or without the ear hook2. CSRV2.03. Frequency band: 2.40 ~ 2.48GHz4. Talk time: up to 5 hours5. S

1. CSRV2.02. Frequency band: 2.40GHz ~ 2.48GHz3. Talk time: up to 8 hours4. Standby time: up to 200 hours5. About 14g with Li-polymer rechargeable battery