Gembird TWST-01

Features: - Enjoy Wireless Mobility - Listen to your music and make handsfree phone calls - Works with any BT enabled laptop or mobile phone - Transparent TWS in-ears - Up to 7 hours of listening time - Automatically mutes your music in case of incoming calls - LCD battery indicator and color-changing backlight Specifications: - Interface: BT v. 5.4 - BT frequency range: 2402 ~ 2480 MHz - RF output power: 4 dBm - Supported profiles: HSP, HFP, A2DP and AVRCP - Playing time: up to 30 hours - Recharging time: 1-2 hour - Operation distance: up to 10 m in the open air - Speaker frequency response: 20 Hz - 20000 Hz - Speaker: 8 mm, 32Ohm - Battery: case 300 mAh; earbuds internal 30 mAh x 2 pcs, Li-Polymer - Net weight (whole set): 34 g System requirements: - BT enabled smartphone, tablet or PC